:root {
  color-scheme: dark;
  --bg: #0b1f3a;
  --bg2: #0e2a45;
  --card: #143a5c;
  --border: #1f4b7a;
  --text: #e8eef5;
  --muted: #a8c4dc;
  --faint: #8fb4d6;
  --primary: #2e8bb3;
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.12);
  --ok: #4ade80;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}
a { color: #7dd3fc; }
button, input, select { font: inherit; }
.boot { padding: 48px 24px; text-align: center; color: var(--muted); }

.shell { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 18px; background: var(--bg2); border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand { font-weight: 800; text-decoration: none; color: #fff; letter-spacing: 0.02em; }
.top-meta { color: var(--muted); font-size: 0.9rem; }
.top-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.layout { display: grid; grid-template-columns: 220px 1fr; flex: 1; min-height: 0; }
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: flex; gap: 8px; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--border); }
  .nav-btn { white-space: nowrap; }
}

.sidebar {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  padding: 14px 12px;
}
.nav-btn {
  display: block; width: 100%; text-align: left; background: transparent; border: 0;
  color: var(--muted); font-weight: 700; padding: 10px 12px; border-radius: 10px; cursor: pointer;
  margin-bottom: 4px;
}
.nav-btn:hover { background: rgba(255,255,255,0.04); color: var(--text); }
.nav-btn.active { background: var(--primary); color: #fff; }

.main { padding: 22px 20px 40px; max-width: 1100px; width: 100%; }
h1 { margin: 0 0 6px; font-size: 1.55rem; }
h2 { margin: 0 0 12px; font-size: 1.1rem; }
.sub { color: var(--muted); margin: 0 0 18px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}

.auth-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background: radial-gradient(ellipse at top, #143a5c 0%, var(--bg) 55%);
}
.auth-card { width: 100%; max-width: 420px; }
.auth-card h1 { text-align: center; }
.auth-card .sub { text-align: center; }

.label { display: block; font-size: 0.78rem; font-weight: 800; color: var(--faint);
  text-transform: uppercase; letter-spacing: 0.04em; margin: 0 0 6px; }
.input {
  width: 100%; background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 12px; padding: 12px 14px; margin-bottom: 12px;
}
.input:focus { outline: 2px solid rgba(46,139,179,0.45); border-color: var(--primary); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 12px; padding: 12px 16px; font-weight: 800; cursor: pointer;
  text-decoration: none;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; width: 100%; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: var(--danger-soft); color: var(--danger); border: 1px solid var(--danger); }
.btn-sm { padding: 8px 12px; font-size: 0.9rem; width: auto; }

.grid-stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); margin-bottom: 16px; }
.stat-value { font-size: 1.8rem; font-weight: 800; }
.stat-label { color: var(--muted); font-size: 0.9rem; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); font-size: 0.95rem; }
th { color: var(--faint); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }
.muted { color: var(--muted); }
.error { color: var(--danger); margin: 8px 0 12px; font-weight: 600; }
.ok { color: var(--ok); margin: 8px 0 12px; font-weight: 600; }
.empty { color: var(--faint); padding: 16px 0; }
.row-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.chip {
  display: inline-block; background: rgba(46,139,179,0.18); color: #bfe6f7;
  border-radius: 999px; padding: 4px 10px; font-size: 0.8rem; font-weight: 700;
}
.list-btn {
  display: block; width: 100%; text-align: left; background: var(--bg); border: 1px solid var(--border);
  color: var(--text); border-radius: 12px; padding: 12px 14px; margin-bottom: 8px; cursor: pointer;
}
.list-btn:hover { border-color: var(--primary); }
.search-row { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.search-row .input { flex: 1; margin-bottom: 0; min-width: 180px; }
.footer-links { margin-top: 18px; text-align: center; font-size: 0.85rem; color: var(--muted); }
.footer-links a { margin: 0 6px; color: var(--faint); }